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Hmm, I couldn't find that last time I looked at building Rust -- all I saw was an option to grab precompiled builds of Rust LLVM from the CI server, but maybe I

• steveklabnik 6y ago
  https://rustc-dev-guide.rust-lang.org/getting-started.html#configuring-the-compiler https://rustc-dev-guide.rust-lang.org/getting-started.html#c... links to https://rustc-dev-guide.rust-lang.org/building/suggested.html#skipping-llvm-build https://rustc-dev-guide.rust-lang.org/building/suggested.htm... ... which is broken. I'll file a docs bug. Can't do it right this moment, but will in a day or two. It is not my area of expertise, but I believe the way you do it is to set this option: https://github.com/rust-lang/rust/blob/master/config.toml.example#L596-L599 https://github.com/rust-lang/rust/blob/master/config.toml.ex... buuut the dockerfile for the llvm 9 build passes this flag as an argument: https://github.com/rust-lang/rust/blob/5a549d36ee81b226d16724240b88f0137f8a36af/src/ci/docker/host-x86_64/x86_64-gnu-llvm-9/Dockerfile#L31 https://github.com/rust-lang/rust/blob/5a549d36ee81b226d1672...